DE663991C - Process for the abbreviated pre-ripening of alkali cellulose - Google Patents

Process for the abbreviated pre-ripening of alkali cellulose

Info

Publication number
DE663991C
DE663991C DEK133469D DEK0133469D DE663991C DE 663991 C DE663991 C DE 663991C DE K133469 D DEK133469 D DE K133469D DE K0133469 D DEK0133469 D DE K0133469D DE 663991 C DE663991 C DE 663991C
Authority
DE
Germany
Prior art keywords
ripening
alkali cellulose
treatment
stage
abbreviated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEK133469D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RUDOLF BRANDES DR ING
Kohorn Oscar & Co
Original Assignee
RUDOLF BRANDES DR ING
Kohorn Oscar & Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RUDOLF BRANDES DR ING, Kohorn Oscar & Co filed Critical RUDOLF BRANDES DR ING
Priority to DEK133469D priority Critical patent/DE663991C/en
Application granted granted Critical
Publication of DE663991C publication Critical patent/DE663991C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/08—Alkali cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Crushing And Pulverization Processes (AREA)

Description

Verfahren zur abgekürzten Vorreifung von Alkalicellulose Gegenstand des Hauptpatents ist ein Verfahren zur abgekürzten Vorreifung vonAlkalicellulose, bei welchem während seiner .der beiden vorgesehenen Behandlungsstufen seine erhöhte Temperatur benutzt wird. Erfindungsgemäß erfolgt diese zweistufige Vorreifungsbeh,andlung der Alkalicellulose in üblichen Zerfaserern mit rotierenden Schaufeln und feststehendem Zahnsattel derart, daß die Schaufeln des Zerfaserers während der bei normaler Temperatur vor sich gehenden Behandlungsstufe in der mit Schneidewirkung verbundenen normalen Umlaufrichtung, während der bei erhöhter' Temperatur vor sich gehenden Behandlungsstufe .aber in der entgegengesetzten Richtung bewegt werden.Process for the abbreviated pre-ripening of alkali cellulose Subject of the main patent is a process for the abbreviated pre-ripening of alkali cellulose, at which during his. of the two intended treatment stages his increased Temperature is used. According to the invention, this two-stage pre-ripening treatment takes place of the alkali cellulose in conventional shredders with rotating blades and fixed ones Toothed saddle so that the blades of the defiber during the at normal temperature proceeding treatment stage in the normal associated with cutting action Direction of rotation during the treatment stage which is taking place at an elevated temperature .but moved in the opposite direction.

Da bei den üblichen Zerfaserern für Alkalicellulose der Zahnsattel seine Zerkleinerungs; wirkung im wesentlichen .nur bei normaler Umlaufrichtung der gezahnten Schaufeln ausüben kann, erfolgt beim Umlaufen in umgekehrter Richtung nur eine ganz bedeutend geringere Zerkleinerung der Alkalicellulosie, hauptsächlich nur ein Auflockern der verfilzten Fasermusse bzw. ein Durchmischen derselben. Versuche haben mergelten, daß auf die erfindungsgemäße Weise mit geringstem Aufwand eine einwandfreie Apparatur für die Ausführung des Verfahrens nach Patent 662 683 geschaffen werden kann.As with the usual shredders for alkali cellulose the tooth saddle its crushing; Effect essentially. only with normal direction of rotation of the Toothed blades can exercise when rotating in the opposite direction only a very much smaller size reduction of the alkali cellulose, mainly only loosening the matted fiber musts or mixing them. try have mergelten that in the manner according to the invention with the least amount of effort flawless apparatus for carrying out the process according to patent 662,683 was created can be.

Claims (1)

PATENTANSPIZUCII: Verfahren zur ;abgekürzten VorreifLmg von Alkalicellulose bei Verwendung erhöhter Behandlungstemperaturen nach Patent 662683 in. üblichen Zerfaserern mit rotierenden Schaufeln und feststehendem Zahnsattel, dadurch gekennzeichnet, daß,die zweistufige Vorreifungsbehandlung der Alkalicellulose derart erfolgt, däß die Schaufeln des Zerfaserers während der bei normaler Temperatur vor sich gehenden Behandlungsstufe in der mit Schneidewirkung verbundenen normalen Umlaufrichtung, während der bei erhöhter Temperatur vor sich gehenden Behandlungsstufe aber in der entgegengesetzten Richtung bewegt werden. .PATENT APPLICATION: Process for the abbreviated pre-ripening of alkali cellulose using elevated treatment temperatures according to patent 662683 in conventional fiberizers with rotating blades and fixed toothed saddle, characterized in that the two-stage pre-ripening treatment of the alkali cellulose takes place in such a way that the blades of the shredder are at normal temperature prior treatment stage in the normal direction of rotation associated with the cutting effect, while the treatment stage, which occurs at an elevated temperature, is moved in the opposite direction. .
DEK133469D 1934-03-10 1934-03-10 Process for the abbreviated pre-ripening of alkali cellulose Expired DE663991C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK133469D DE663991C (en) 1934-03-10 1934-03-10 Process for the abbreviated pre-ripening of alkali cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK133469D DE663991C (en) 1934-03-10 1934-03-10 Process for the abbreviated pre-ripening of alkali cellulose

Publications (1)

Publication Number Publication Date
DE663991C true DE663991C (en) 1938-08-20

Family

ID=7247890

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK133469D Expired DE663991C (en) 1934-03-10 1934-03-10 Process for the abbreviated pre-ripening of alkali cellulose

Country Status (1)

Country Link
DE (1) DE663991C (en)

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